Compress JPG to a Target Size in KB
Optimize a JPG toward the KB limit required by your form without making a mathematically exact-size promise.
Fast Compression
Compress images instantly in your browser without waiting.
Privacy Friendly
Images are processed locally and never uploaded to servers.
Multiple Formats
Supports JPG, PNG and WebP compression.
How to Compress Images Online
Upload Your Images
Select or drag and drop up to 10 images to start compression.
Compress Automatically
Our photo compressor automatically reduces image size while keeping quality high.
Download Optimized Images
Download your compressed images individually or as a ZIP file.
Why Use Our Free Image Compressor?
A JPG exact size compressor can search for a quality level that approaches a chosen target, but an exact byte size is not always possible. JPG encoders produce discrete results, and two images at the same dimensions and quality can have very different sizes. Treat the requested KB as a target or maximum, check the final download, and use the clearest result accepted by the destination form.
Why exact KB output is difficult
File size depends on dimensions, texture, colour variation, metadata, and encoder behavior. A best-fit result near or below the target is more realistic than padding or damaging an image simply to hit an exact byte number.
Frequently Asked Questions
Can a JPG always be compressed to an exact KB size?⌄
No. A compressor can optimize toward a target, but the encoder may not produce the exact requested byte count.
Should I choose exactly the form's maximum size?⌄
A result slightly below the maximum provides a safer upload margin, provided the image remains clear.